Type-writer erasing attachment.



J. B. ZIMDARS. TYPE WRITER ERASING ATTACHMENT; APPLICATION PILBDIBEPT. 20, 1909.

Patented Mar. 29, 1910.

: MI W WI'EM,

' surface to underlie the paper and between it and tlv platen so that erasures may he.

UNITED: sTA s PATENT OFFlCEQ,

JOHN 13. ZIMDARS, or SAN FRANCISCO, CALIFORNI A.-

TYPE-WRITER ERASING ATTACHMENT.

Specification of Letters Patent. P tented Mar. 29, 1914 App1ieation fiiea's mmbereoiiaoeiqseriaiNo. 518,658; i I

To all whorri it may iii'i'c'erh:

-l$c it known that I, Jonx B. Zn'iniuzs, a citizen of the United States, residing in the i-it v and county of SanFrancisco and State of California have invented new and useful lmproven'ients in 'lype-lvriter Erasing Attachments, of which the following is a specitit-.ation.

lily invention relates to an attachment for typewriters whichis designed to provide a readily made in case of necessity without blurring or in uring the carbon, or other sheets.

X It consists of a plate pivoted at one end to a fixed portion of the apparatusfsJ as [to- 'pivot point. and also turnable about the he readi-lyturnable up and down about its pivot axis so as to be reversed with relation to the platen to present either surface upwardly.

The invention further consists in the combination of parts and details of construction which will be more fully explained by reference to the accompanying drawings, in which Figure 1 is a partial top view showing my device. Fig. 2 is a partial front view. Fig.

3 is a view showing the erasing device turned to the front. Fig. 4 shows it turned to the rear.

My erasing device consists of a thin metal or equivalent: plate A having shaft like ex tensions 2 in line with onefedge. flhese shaft-like extensions are supported 'nal-boxes 3 which are secured i portion of the carriage so that shaft is supported in these-boxes, Il' ne's 'par allel with and substantially above the axis.

of the revoluble platen 5, These boxes or supports are formed with clamps whlch may be made a part of the and which may fit the fixed portion of the nacliine and be,

readily secured thereto b3 t screws, or like convenient dev'e'e as shown at 6; or if de sired the the machine. ,3 of these boxes carries a swivel or turnab'l hearingy'l', in wiichthat end of the shattp-is journaled. ing is swiveled transversely to-the line of the shaft 2, and beingturnable in its support, allows the plateA to betu'rned up out of the line of the-work t'gshift itbetween the sheets The bot; orbe ring for the opposite end: of the, shaatt-is'fopen' at thetop,

"readi y made as .when forward position. -I boxes may be a permanent part ot' he bears and may have a light yielding spring 5 projecting sutiiciently over the 0 )en -'.slot to] allow the sliaftjto b introduced into the slot by pressing the. spring out; of line;' the..

spring illeltdftQIWYfllTl moves over the'slot sutlieientl to prevent the shaft from-dieing accidentally or easily lifted out of bearing; but when it is desired to raise the erasing orcorrection plate A it is only necessary to lift thatencl of the shaft, and the spring will yield to allow it to pass. I i

The device is used as follows it is 'normally turned down, standing in a" horizontal position parallel with the'platenr-T If an erasure is necessary upon any portion of the sheet or sheetswhichare above the iniddlc or lower part of the page. the plate is turned down so as to lie above the ilateiiielitl tacing' the operator. If there are a greiit number of sheets, the upper sheets;and-carbons are turned forwardlv, and theplabe'is introduced below the lowermost. printed sheet.- The erasure having been made, the plate is turned up about its pivot and thesheets separated so that th plate may be introduced below the next. printed sheet, and between it and the carbon below, and so on' until all i the corrections have been made. It will be seei' hat if corrections are neccssar near th ott'om of the page, the paper will have could not be p opeiil In order therefore t such condition, I h device that the p ate m its axis and turned+tonu ofgfthe' platen as shot 184. In order easily'turn the plat I it"is' provided with te or other turning attachment as at 'etained"in position. 'i'l'te' erasares under so constructed my versed about baek' portion a 9. en theerasures are to be thus made near the lower edge of the pagethe plate A is turned tothe rear-,"and the sheet is broughttQrward to rest upon the-plate in this )o'siti on; the erasure being thus l the plate is in thereaelr all parts oftlie paper .without dis-- turbing the sheets, and to m'alre erasures at any point between the top and bottom'w th out disturbing the position'ofthe' sheets 1n the machine or with relation to each-other. In order to prevent the plate being turned when raised outofthe horizontal position.

Ixhave shown a reetangularlugor collar 10 llp -he Lfixed to the-'plate; contiguous to the j aidly""""extending parallel aws of moved so far that it am thus enabled -to"-- of line with the platen.

' writershavingattaching means for securqsh aft substantially in alinemetit with the swivel carrying box 3*, so that as soon as E the plate and "its shaft 2 are turnedflup-' wardly, the rectangular sides of the collar- 10 will pass between the jaws of the, born-3%: and W111 thus prevent the turning offtlie' plate while it is thus raised. Whenever -the plate is dropped intoposition parallel with writers having a shaft-like extension alo: ats-rippierj edge,Iboxesinwhich the end smd shaft are supported substantially .abo the roll platen ofthe machine, one of sa .v b'oxesxbemg sw-iveled and turnable to all the plate to be turned up at right' angl with and out of line ofthe platen, the 0th the platen roll, the collar willbe out of- 1injl; -'b0 x having, an elastic spring attachment with the j aws'of the box, and it may then be l 10 readily turneda's previously described.

The devicels readil removable by-slip- Having thus described my invention, what I claim'and desire to secure by Letters Patat is i a 1.-A.n. erasing. bed' or plate for. typeing it substantially in alinement' with the platen, said bed or plate being hinged at one end and adapted to be turned out of paral lelism with the axis of theplaten. v, 2. An'erasing or correction plate for type: writers hinged at one end substantially upwardly.

'3.' An' erasing or correction plate for type Writers',-'having a shaft or axis along one edge. and journal-boxes for holding .said

platen, in which boxes said shaft-is mm ab1e,'on'e .of said boxes being movable to permit the plate to be turned to stand out 4. An erasure or correction plate consisting of a thin metal sheet having'shaft lilre extensions along its upper edge, boxes in which said shaft is supported and turnable .to reversethe plate and present either face I upwardly, and means by which the; supportt ing boxes flare removably attached to the' frame-work'of the carnage.

5. An erasurleor correction plate for typewriters consisting of a thin metal plate having' shaft-like extensions alongits' upper edge, a swivel box in which one end of the; shaft is journaled and supported so as to j be revoluble'and .also t'urnable about the swvel supports, and a box .in which the: other end of the shaft is detachably supported.

erasure or correction plate for typecliseng'ageably hold the otherjend of t shaft in posltion, and means by which t 1 shaft and plate may'be turned to incli ping the shaft out of t e swivel bearing.

toward the platen roll upon either side the shaftline.

7; The. combinationwith a typewrit plat'en,"of anerasure plate, boxes in whi said plate is reversibly mounted, and

mounting for one of said boxes in whi said box and plate are. turnablesofthat t plate may. stand "out of line with the plate 8. The combination with, a typewrit platen, of an erasure. plate, boxes in whi said plate is reversibly ,gmounte'd, and mounting for one of-Jsaid boxes in whi said box'angl plate are turnable sothat t plate'rnay stand out' of linewith the plate a rectangular lug or-collarcarried' with t plate and adapted to enter-jaws on s'a mounting when the plate has been raised stand out of line with the .platen, 'wherel the'plate is only-turned whenlowered su sta'ntially in line withthe platen.

9. The combination with a typewriter, a correction plate having shaft-like exte sions about which the plate is; partially rev luble'to present either. surface upwardly, support and a swivel-box mounted therei .within which box one end. of the shaft turnable, and by which the plate may raisedout of line with the platen, and rectan ular lug or collarcarried by the sha and adapted to enter jaws on the suppc when the plate has been raised from its ho:

zontal. position whereby the plate is on turnable when lowered to the horizontal p sition. v f

In testimony whereof I have hereunto 2 my hand in the presence of tWQSUbSClibll witnesses.

" JOHN B. ZIMDARS. lVitnessesL E. G. BLASDEL,

J. C. Baonnz. 

